html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
button,article, aside, canvas, details, embed, figure,
figcaption, footer, header, hgroup, menu, nav,
output, ruby, section, summary, time, mark,
audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    outline: none;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
ol, ul { list-style: none; }
button{background: transparent;}
blockquote, q { quotes: none; }
blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; }
strong { font-weight: bold; }
table { border-collapse: collapse; border-spacing: 0; }
img { border: 0; }
html{
    line-height: initial;
    height: 100%;
}
body{
    font-size: 0.32rem;
}
html,body{
    max-width:640px;
    min-width:320px;
    margin:0 auto;
    height:100%;
    font-family:"Microsoft YaHei", "Arial";
}
.bg_cover{
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
a,img,div{
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}
img{
    display:block;
}
.bg_hundered{
    background-size:100% 100%;
    background-repeat:no-repeat;
    background-position:center;
}
div,img,p{
-webkit-touch-callout:none;
-webkit-user-select:none;
-khtml-user-select:none;
-moz-user-select:none;
-ms-user-select:none;
user-select:none;
}